– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 pm Wed 04 Mar Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 pm Wed 04 Mar Local Time
Updates in:
Update imminent hr min s
Issued: 3 pm Wed 04 Mar Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryHeavy rain (total 25mm), heaviest during Fri night. Mild temperatures (max 7°C on Sat morning, min 3°C on Wed night). Wind will be generally light. | Days 5–7 Weather SummaryMild with heavy rain (total 40mm), heaviest during Sat night. Becoming colder with a moderate fall of snow heaviest on Mon night. Freeze-thaw conditions (max 8°C on Sat night, min -2°C on Mon night). Wind will be generally light. | ||||||||||||||||
Wed 4 | Thursday 5 | Friday 6 | Saturday 7 | Sunday 8 | Monday 9 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  | | | | |  | | |  |  | |  | |
rain shwrs | mod. rain | light rain | rain shwrs | light rain | cloudy | light rain | mod. rain | light rain | light rain | heavy rain | light rain | light rain | light snow | light snow | light snow | mod. snow | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 2 | 2 | 7 | |
3 | 7 | 4 | 0.9 | 1.9 | — | 0.8 | 7 | 0.1 | 3 | 31 | 5 | 1.8 | — | — | — | — | |
max °C | 5 | 5 | 4 | 4 | 3 | 6 | 6 | 6 | 7 | 7 | 8 | 7 | 5 | 2 | 1 | 0 | -1 |
min °C | 5 | 3 | 3 | 3 | 3 | 4 | 5 | 5 | 7 | 7 | 6 | 7 | 3 | 0 | 0 | -1 | -2 |
5 | 0 | 1 | 1 | 2 | 4 | 5 | 5 | 6 | 6 | 4 | 4 | 0 | -4 | -4 | -4 | -5 | |
1300 | 1100 | 950 | 1050 | 1000 | 1200 | 1500 | 2050 | 2400 | 2100 | 2200 | 1800 | 1100 | 800 | 500 | 550 | 350 | |
Cloud base (m) | 600 | 600 | 600 | 600 | 800 | 600 | 650 | 600 | 600 | 600 | 600 | 550 | 600 | 600 | 600 | 600 | 600 |
 | — | — | 6:41 | — | — | 6:39 | — | — | 6:37 | — | — | 7:35 | — | — | 6:33 | — | — |
 | 5:55 | — | — | 5:58 | — | — | 5:59 | — | — | 6:00 | — | — | 7:01 | — | — | 6:04 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Heavy rain (total 25mm), heaviest during Fri night. Mild temperatures (max 7°C on Sat morning, min 3°C on Wed night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mild with heavy rain (total 40mm), heaviest during Sat night. Becoming colder with a moderate fall of snow heaviest on Mon night. Freeze-thaw conditions (max 8°C on Sat night, min -2°C on Mon night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.